Skip to main content

Full text of "Handbook Of Chemical Engineering - I"

See other formats


Service		Size	Pipe	Fittings and valves	Joints
		Small	Extra strong, wrought	Cast  steel,   extra  heavy: valves special, as below	Screwed
1. High-pressure   steam   (above 160 Ib.) with superheat.		Large	Standard or extra strong,	Cast  steel,   extra  heavy: bronze  valve  spindles: special valve necks: non-	Van Stone or welded flanges, corrugated steel gaskets
			WTOugnt	corrosive seats, rings and	
				plug faces	
		Small	Wrought iron, standard	Cast iron, extra heavy	Screwed
2. High-pressure steam, saturated		Large	Wrought    iron,    to    suit joints	Cast iron, extra heavy	Van Stone or welded flanges, corrugated copper gaskets.
3. Steam pressure from 30 to 80 lb., saturated.		Small Large	Wrought iron, standard Wrought iron, standard	Cast iron, standard Cast iron, standard	Screwed Faced flanges, rubber gaskets with wire insertion.
		SmaU	Wrought iron, standard	Cast iron, standard	Screwed
4. Exhaust steam ...............			Cast iron (light) or galvan-		Plain-faced  flanges:  rubber
		Large	ized sheet	Cast iron, standard	wire-insertion gaskets
		 Small	Cast   iron   or   galvanized	Cast iron  or galvanized,	Cast iron, plain flanges, galvan-
5. Cold or warm water,  underground.		Large	standard Cast iron, brass and steel	standard Cast iron, brass and steel (valves  special  for  salt water)	ized screwed. Bell and spigot, calked with lead and oakum
		Rmnll	Galvanized  or black	Galvanized  or  cast iron,	Screwed
6. Coldwater, above ground		Oi-U.*il	wrought, standard	standard	
		Large	Cast iron, flange	Cast iron, flange, usually standard	Plain-faced flanges, rubber gaskets with wire insertion
		Small	Brass, standard	Brass or cast iron, standard	Screwed
				or extra heavy	
7. Hot water ...................					Faced flanges after making up:
		Large	Brass, standard, or cast iron	Cast iron	rubber gaskets with wire in-
					sertion
o
1
&
I
1
8 g